libsframe: bfd: use uint32_t for return type of sframe_calc_fre_type

Use uint32_t type alias consistently for all APIs in libsframe.

bfd/
	* elfxx-x86.c (_bfd_x86_elf_create_sframe_plt): Adjust for the
	changed return type.
libsframe/
	* sframe.c (sframe_calc_fre_type): Use uint32_t for return type.
include/
	* sframe-api.h (sframe_calc_fre_type): Likewise.

libsframe/sframe.c

@@ -601,7 +601,7 @@ sframe_fde_create_func_info (uint32_t fre_type,
 /* Get the FRE type given the function size.  */
 /* FIXME API for linker.  Revisit if its better placed somewhere else?  */
 
-unsigned int
+uint32_t
 sframe_calc_fre_type (size_t func_size)
 {
   uint32_t fre_type = 0;